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I ran into the same problem; my host rebooted the MySQL server, and all was fine after that.
Not sure if it helps ....
(on another occasion, I also had this issue, only to find out, that I had accidently swapped two letters {how stupid did I feel
![](https://xoops.org/uploads/smil42e7a439bcbb8.gif)
}...sometimes, one just can't see the obvious...)